00443nam a2200157Ia 450000500170000000800410001702000180005808200220007610000390009824500430013725000120018026000280019230000150022050000280023565000220026320250407094133.0231217s9999    xx            000 0 und d  a9788131210451  a001.64404  PET;52  aPeterson, Larry L. Davie, Bruce S. 0aComputer networks : a systems approach  a4th ed.  c2007bElsevieraHaryana  axxvii, 806  aContent page available.  aComputer,networks